Re: [PATCH v3 1/4] hwmon: iio_hwmon: delay probing with late_initcall

From: Quentin Schulz
Date: Tue Jul 26 2016 - 04:25:12 EST

On 26/07/2016 10:21, Alexander Stein wrote:
> On Tuesday 26 July 2016 09:43:44, Quentin Schulz wrote:
>> iio_channel_get_all returns -ENODEV when it cannot find either phandles and
>> properties in the Device Tree or channels whose consumer_dev_name matches
>> iio_hwmon in iio_map_list. The iio_map_list is filled in by iio drivers
>> which might be probed after iio_hwmon.
> Would it work if iio_channel_get_all returning ENODEV is used for returning
> EPROBE_DEFER in iio_channel_get_all? Using late initcalls for driver/device
> dependencies seems not right for me at this place.

Then what if the iio_channel_get_all is called outside of the probe of a
driver? We'll have to change the error code, things we are apparently
trying to avoid (see v2 patches' discussions).